Hi guys, I just bought a z3 from a friend, and I have some battery problem
On 5.1.1, my battery only last for a day, which is under my expectation for the z3. Note that I only use my phone when necessary, location, mobile data, nfc, bluetooth, wifi are always off when I don't need them. I lend my mother's z3v and its battery life was excellent, I compared the 2 phone by watching a youtube clip for 10 minutes, with only wifi on, the z3v only lost 1% battery while my z3 lost 3-4% each time. But according to cnet (sorry I can't post links yet), the z3's battery have a slight edge over the z3v. Why is this happening?
Anyway, I downgrade my z3 to kitkat, rooted it, install setcpu, greenify, wakelocks detector, I also use disable service. Like before, all the phone functions are off when I don't need them, all unnecessary apps are deleted. However, my phone battery is still nowhere near the non-rooted z3v. I have a feeling that the battery drain faster below 85%, when it reached 15%, it loses 1% every 30 seconds. Moreover, the z3v only loses 1% over night (sometimes not at all) in airplane mode, while my z3 loses about 3-4%.
What do you guys think? Is this a problem with the phone's battery? Can my friend damaged the battery in his six months of using?
Sorry if my English is hard to understand, I tried my best to describe the problem
On 5.1.1, my battery only last for a day, which is under my expectation for the z3. Note that I only use my phone when necessary, location, mobile data, nfc, bluetooth, wifi are always off when I don't need them. I lend my mother's z3v and its battery life was excellent, I compared the 2 phone by watching a youtube clip for 10 minutes, with only wifi on, the z3v only lost 1% battery while my z3 lost 3-4% each time. But according to cnet (sorry I can't post links yet), the z3's battery have a slight edge over the z3v. Why is this happening?
Anyway, I downgrade my z3 to kitkat, rooted it, install setcpu, greenify, wakelocks detector, I also use disable service. Like before, all the phone functions are off when I don't need them, all unnecessary apps are deleted. However, my phone battery is still nowhere near the non-rooted z3v. I have a feeling that the battery drain faster below 85%, when it reached 15%, it loses 1% every 30 seconds. Moreover, the z3v only loses 1% over night (sometimes not at all) in airplane mode, while my z3 loses about 3-4%.
What do you guys think? Is this a problem with the phone's battery? Can my friend damaged the battery in his six months of using?
Sorry if my English is hard to understand, I tried my best to describe the problem
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